DE2830493C2 - Vorderer Kettenumwerfer für eine Fahrrad-Kettenschaltung - Google Patents

Vorderer Kettenumwerfer für eine Fahrrad-Kettenschaltung

Info

Publication number
DE2830493C2
DE2830493C2 DE2830493A DE2830493A DE2830493C2 DE 2830493 C2 DE2830493 C2 DE 2830493C2 DE 2830493 A DE2830493 A DE 2830493A DE 2830493 A DE2830493 A DE 2830493A DE 2830493 C2 DE2830493 C2 DE 2830493C2
Authority
DE
Germany
Prior art keywords
pivot point
chain
frame
point distance
crank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE2830493A
Other languages
German (de)
English (en)
Other versions
DE2830493A1 (de
Inventor
Sakai Osaka Nagano-Masashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimano Inc
Original Assignee
Shimano Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shimano Industrial Co Ltd filed Critical Shimano Industrial Co Ltd
Publication of DE2830493A1 publication Critical patent/DE2830493A1/de
Application granted granted Critical
Publication of DE2830493C2 publication Critical patent/DE2830493C2/de
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
    • B62M9/131—Front derailleurs
    • B62M9/136—Chain guides; Mounting thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
    • B62M9/131—Front derailleurs
    • B62M9/134—Mechanisms for shifting laterally
    • B62M9/1342—Mechanisms for shifting laterally characterised by the linkage mechanisms

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Transmissions By Endless Flexible Members (AREA)
  • Transmission Devices (AREA)
DE2830493A 1977-07-12 1978-07-11 Vorderer Kettenumwerfer für eine Fahrrad-Kettenschaltung Expired DE2830493C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1977092844U JPS5649832Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1977-07-12 1977-07-12

Publications (2)

Publication Number Publication Date
DE2830493A1 DE2830493A1 (de) 1979-01-25
DE2830493C2 true DE2830493C2 (de) 1982-01-21

Family

ID=14065733

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2830493A Expired DE2830493C2 (de) 1977-07-12 1978-07-11 Vorderer Kettenumwerfer für eine Fahrrad-Kettenschaltung

Country Status (6)

Country Link
US (1) US4194409A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5649832Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2830493C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2397320A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB2002468B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT1097500B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2443373B1 (fr) * 1978-12-04 1985-12-13 Huret Roger Derailleur de pedalier pour cycle
US4371064A (en) * 1979-08-28 1983-02-01 Shimano Industrial Company Limited Drive and brake device for a bicycle
FR2508196A1 (fr) * 1981-06-17 1982-12-24 Huret & Fils Mecanisme de guidage et d'actionnement, notamment pour derailleur de bicyclette
US4617006A (en) * 1983-09-19 1986-10-14 Shimano Industrial Company Limited Front derailleur for a bicycle
JPS6136490U (ja) * 1984-08-08 1986-03-06 株式会社シマノ 自転車用リヤデイレ−ラ−
JPS61161001A (ja) * 1985-01-09 1986-07-21 Nec Corp 可変減衰器
JPH0322071Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1986-07-10 1991-05-14
JPH0716554Y2 (ja) * 1988-06-30 1995-04-19 島野工業株式会社 自転車用フロントディレーラー
JPH0535920Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1989-09-05 1993-09-10
JP2965878B2 (ja) * 1994-11-25 1999-10-18 株式会社シマノ 自転車用フロント変速装置のチェーンガイド位置決め機構
US7025698B2 (en) * 2000-01-20 2006-04-11 Christopher Alan Wickliffe Front derailleur with annular chain guide, bicycle and method of operation
US6454671B1 (en) 2000-01-20 2002-09-24 Christopher Alan Wickliffe Front bicycle derailleur with annular chain guide
US7722486B2 (en) * 2005-12-14 2010-05-25 Shimano Inc. Top/bottom pull bicycle front derailleur
US20070265121A1 (en) * 2006-05-09 2007-11-15 Jimmy Gross Drive chain motion stabilizer
US20080167148A1 (en) * 2007-01-09 2008-07-10 Shimano (Singapore) Pte., Ltd. Bicycle front derailleur
US8678962B2 (en) * 2010-12-15 2014-03-25 Sram, Llc Bicycle derailleur and method
US9284017B2 (en) * 2010-12-15 2016-03-15 Sram, Llc Bicycle derailleur and method
US9457871B2 (en) 2014-09-08 2016-10-04 Shimano Inc. Bicycle front derailleur
US9616970B2 (en) * 2015-07-03 2017-04-11 Shimano Inc. Bicycle derailleur
IT201700015324A1 (it) * 2017-02-13 2018-08-13 Campagnolo Srl Deragliatore anteriore per bicicletta
TWI789225B (zh) * 2022-01-27 2023-01-01 台灣微轉股份有限公司 自行車前撥鏈器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR980425A (fr) * 1948-12-14 1951-05-11 Système de changement de vitesses par déraillement de chaîne
DE2314554C2 (de) * 1973-03-23 1983-10-06 Fichtel & Sachs Ag, 8720 Schweinfurt Kettenschaltung mit Änderung des Anstellwinkels des Leitrades
US3974707A (en) * 1974-08-03 1976-08-17 Shimano Industrial Company, Limited Derailleur for a bicycle
FR2294079A1 (fr) * 1974-12-12 1976-07-09 Shimano Industrial Co Derailleur avant pour une bicyclette
JPS51118237A (en) * 1975-04-09 1976-10-18 Shimano & Co Ltd Outside speed change mechanism
US4037484A (en) * 1975-07-21 1977-07-26 Milton Morse Derailleur construction having fixed increment means
IT7522155U1 (it) * 1975-08-29 1977-03-01 Campagnolo Tullio Deragliatore centrale della catena di trasmissione per biciclette con ingranaggio centrale a piu' rapporti di velocita' realizzato con citreri particoalrmente economici

Also Published As

Publication number Publication date
IT1097500B (it) 1985-08-31
DE2830493A1 (de) 1979-01-25
FR2397320B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1983-04-01
GB2002468B (en) 1982-06-23
US4194409A (en) 1980-03-25
FR2397320A1 (fr) 1979-02-09
IT7825410A0 (it) 1978-07-06
JPS5649832Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1981-11-20
JPS5419459U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1979-02-07
GB2002468A (en) 1979-02-21

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Legal Events

Date Code Title Description
OAP Request for examination filed
OD Request for examination
D2 Grant after examination
8363 Opposition against the patent
8328 Change in the person/name/address of the agent

Free format text: SCHWABE, H., DIPL.-ING. SANDMAIR, K., DIPL.-CHEM. DR.JUR. DR.RER.NAT., PAT.-ANW., 8000 MUENCHEN

8365 Fully valid after opposition proceedings
8339 Ceased/non-payment of the annual fee